Question

which of the following statements are true? select all that apply. canadian waterweed plants are made up of tiny units called cells. each canadian waterweed cell is big enough to see without the help of a microscope. the organism shown in the micrograph is made up of cells, but the organism in the photograph is not. each canadian waterweed cell is less than 0.25 millimeters long.

Explanation:

1. Statement 1: All plants (including Canadian waterweed) are made of cells (cell theory), so this is true.
2. Statement 2: Most plant cells, including Canadian waterweed cells, are too small to see without a microscope. So this is false.
3. Statement 3: All living organisms (both in micrograph and photograph) are made of cells (cell theory applies to all life), so this is false.
4. Statement 4: Canadian waterweed cells are typically small; 0.25 mm is relatively large for a cell, and these cells are smaller, so this is true.

Answer:

• Canadian waterweed plants are made up of tiny units called cells.
• Each Canadian waterweed cell is less than 0.25 millimeters long.